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Finding the Fourth Proportional to 109,628.66, 151,288 and 59,327.66

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Solution

The fourth proportional to 109,628.66, 151,288 and 59,327.66 is: 81,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,628.66 : 151,288 = 59,327.66 : x
  2. Step 2: Convert to fraction form
    109,628.66/151,288 = 59,327.66/x
  3. Step 3: Cross multiply
    109,628.66x = 151,288 × 59,327.66
  4. Step 4: Simplify right side
    109,628.66x = 8,975,563,026.08
  5. Step 5: Solve for x
    x = 8,975,563,026.08/109,628.66
  6. Step 6: Final answer
    x = 81,872.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.